Skip to main content

Advertisement

Table 1 Characteristics of the Vasaloppet study population

From: Midlife physical activity is associated with lower incidence of vascular dementia but not Alzheimer’s disease

  All Skiers Non-skiers
  n = 395,369 n = 197,685 n = 197,684
Characteristics 1989–2010 Median (IQR) or n (%) Median (IQR) or n (%) Median (IQR) or n (%)
 Age at baseline, years 36.0 (29.0–46.0) 36.0 (29.0–46.0) 36.0 (29.0–46.0)
 Women 149,796 (38) 74,897 (38) 74,899 (38)
 Education
  Primary/elementary school (≤ 8 years) 49,344 (13) 14,538 (7.4) 34,806 (18)***
  Secondary school/high school (9–12 years) 176,571 (45) 76,635 (39) 99,936 (51)
  Higher education/university (≥ 13 years) 166,133 (42) 106,147 (54) 59,986 (31)
Dementia diagnoses at follow-up N events (incidence rate/1000 person-years)
 All-cause dementia 542 (0.14) 223 (0.11) 319 (0.16)
 Vascular dementia 112 (0.03) 40 (0.02) 72 (0.04)***
 Alzheimer’s disease dementia 181 (0.05) 86 (0.04) 95 (0.05)
  1. Characteristics of the Vasaloppet study population presented for the whole cohort and by skiers and non-skiers separately
  2. ***p < 0.001. Group difference between skiers and non-skiers, estimated with Mann-Whitney U test (numeric variables) and Pearson’s χ2 test (categorical variables). Only significant differences are noted in the table